Beamsville



I Patented Dec. 14; 1869.

" was r j. r i a pipe to any particular place. 5

WILLIAM HE-ABLE, OF- BEAMSVILLE, CANADA, AQSIGNOR TO CHARLES L. SPENCER,

rnus'rnn, ASSIGNOR TOV-WILLI'AM n An n AND ALFRED B. JOHNsoN.

Letters Patent No. 97,915, dated December 14, 1869.

stove-PIPE DRUM.

The Schedule referred toxin-these Letters Patent and making part of thesame.

clear, and exactdescription thereof, reference'being, had to theaccompanying drawings, and to the letters ,ot' reference marked thereon,in which- Figure 1 represents an elevation of theihe'ater. Figure 2, aView of the top and bottom of the cyl-' inder, the caps being removed.

Figures Sand 4 are perspective views of a planofthe upper and lower cupsapplicable to' the heater, the

' same asshown in fig. 1. Y.

Figure 5 represents the heater as used in-ahorizontalposit-ion. i IFigures 6 and. 7 are perspective views-of a'plan of the capsapplicahletothe heater, the same as' shown I Figure 8 is a verticalsection through th centre of the drum. i I 1. j

My invention consistsof a metal cylinder enclosing a seriesof air-pipesor ductsrforattachmentto the I smoke-pipe of iiiel-consuming stovesorfnrnace's, The smoke and heatfrom the:lattercircnlate in theannnlarspace of the cylinder, and rarefythe air in th'e ducts, causing it toascend'amhpa'ss into the room.

A, fig. 1,is the metal cylinder enclosing the airdncts B. Theseducts-extend through the cylinder,

and are held in place by head'sj as shown in fig; '2, one

beingat ,each end of 'the cylindenithe central duct air ascends throughthem;

Acap, O, lS fittGdftO' the bottom of the cylinder, Ihaving' holes orinlets in; its inargin, 'fig. 4', through which the'cold air(represented by thered arrows on being the largest. Wheuthese ducts areheated the figh ii) passes into the chamber formed by thencap C,

and then into the duets. i

If it he required to. conduct cold air to the ducts from any givendistance, tlre capC should be provided with one inlet, L,fig. 1',represented by dotted lines in its side.-. A pipe leading from the pointenters this inlet oraperture L. l

To the top of cylinder is also fitted-a capfD, in

which is an openiug'or outlet, fig: 3, to allow the heatedair,.represented by red arrow; ,on fig. 1, to escape, and the rarefiedair issuing therefrom may he conducted by Thesecaps, at top and bottom,also serve to check the too rapid circulationof air in the ducts,beforeit has become highly rarefied, by forming chamber-1a diators ofthe two heads.

The smoke and heat (represented by black arrows) from the fuel-stoveenter the annular space of the cylinder at its side E, fig. 1, atanyrequired distance from its bottom, and pass upward amid the ductsuntil they make their exit through the pipe F, in the circumference ofthe cylinder, near its top. i

Withinthe cylinder, extending midway across, ar two radiating plates J,section fig. 8, encircling the ducts, and' the one placed a shortdistance above the smoke-entrance E, the other-situated on the oppositeside, a little below the smoke-outlet F.

These radiatingplates prevent the direct passage of the smoke throughthe cylinder A, and serve to distribute the heat around the air-ducts. y

In case the outlet smoke-pipe, with the radiatingplate below it, shouldbe situated directly above the inlet smoke-pipe, it would be advisableto use a central radiating-plate, extendinghalf way across the cylinderfrom the opposite. side.

' The'contour of the cylinder may be round, oval, or any requiredsh'ape,or ornamented, or plain,and the air-ducts may be ofa sizesuitable to the circumference of thecylinder, and of any number, butmuch advantage will arise from the centre one being larger than theothers, and the pipes proportioned to the area of the cylinder, dueregard being hadto the passage of the smoke.

When required to be used in position, as represented in fig. 5,the capsH and 1,..figs. 6"'and 7, would be suitable plans to use for forming theproper circulation of air through the ducts.

The tunnel, or conical-shaped leg G, can be made a. suitable height tobe used with the heater, the upper end pressing into the connection K.

By the use of this invention, th e cold air from the floor of theapartment is drawn ofi', heated, and sent .upward, thus conducing to thecirculation of the air and ventilation of the room.

I am aware that hot-air furnaces have heretofore beenconstrncted, havingfines and air-spaces similar to those herein described;

My invention, however, relates to the construction and arrangement offluesand air-spaces comprising a separate and distinctapparatus,-attachable, at pleasure, tic-any ordinary heating orcooking-stove, to meet the varied requirements of the season.

Ithereforeclaim, as my own invention- The radiating-drum hereindescribed, consisting essentiallyof the cylinder A, with smoke-inlet andexit-- pipes E 1 air-pipes B, perforated beads C and 1), or

equivalents, and. deflectors J J, constructed, arranged,

and operating as and for the purposes setgforth.

WM. HEARLE. \Vitnesses:

JOHN G. KERR, WILFRED GQRNWELL.

